<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>URL 去重工具</title>
</head>
<body>
    <h1>URL 去重工具（保留备注）</h1>
    <form method="POST" enctype="multipart/form-data">
        <input type="file" name="file" accept=".txt" required>
        <button type="submit">上传并去重</button>
    </form>
</body>
</html>
